Least I know what it means now 
I usually find books are split into separate parts, which helps make it easy to match similar books together. So we could start Learn You Some Erlang for Great Good! (No Starch Press) (Paid/Free) at the end of part 2? (So after chapter 10)… or we can see how it goes for now? If things start getting hairy we could always start it sooner or if we find it’s not needed, hold off 
That’s good to hear Rainer! It’ll give me chance to catch up 
Post pics when it’s all done! 